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    <title>Sux4J: Succinct data structures for Java</title>
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    <P>Sux4J is an effort to bring succinct data structures to Java. Presently it provides a number
    of related implementations covering ranking/selection over bit arrays, compressed lists 
    and [[monotone] minimal perfect hash] functions.

    <P>Sux4J is free software
    distributed under either the  <A HREF="https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html">GNU Lesser General Public License 2.1+</A> or the <a href="https://www.apache.org/licenses/LICENSE-2.0">Apache Software License 2.0</a>.
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